# Introduction In the ancient ruins of a lost civilization, a group of modern-day explorers stumbled upon a hidden temple dedicated to the god of knowledge and wisdom. The temple's walls were adorned with intricate hieroglyphs, holding the secrets of an advanced data processing system used by the ancient priests. One of the explorers, a skilled Hadoop engineer, took on the role of a High Priest, deciphering the hieroglyphs and unlocking the temple's mysteries. The goal was to reconstruct the ancient data processing system, leveraging the power of Hadoop's distributed cache to efficiently process large datasets, just as the ancient priests did centuries ago.
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